ented sampling scheme eliminates dynamic input current
errors and the shortcomings of on-chip buffering through
automatic cancellation of differential input current. This
allows large external source impedances, and rail-to-rail
input signals to be directly digitized while maintaining
exceptional DC accuracy.
The LTC2498 includes a high accuracy temperature sensor
and an integrated oscillator. This device can be configured
to measure an external signal (from combinations of 16
analog input channels operating in single ended or dif-
ferential modes) or its internal temperature sensor. The
integrated temperature sensor offers 1/30th °C resolution
and 2°C absolute accuracy.
The LTC2498 allows a wide common mode input range
(0V to V
CC
), independent of the reference voltage. Any
combination of single-ended or differential inputs can be
selected and the first conversion after a new channel is
selected is valid. Access to the multiplexer output enables
optional external amplifiers to be shared between all analog
inputs and auto calibration continuously removes their
associated offset and drift.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
No Latency ∆∑ and Easy Drive are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
n
n
n
n
n
n
n
n
n
n
n
n
Up to 8 Differential or 16 Single-Ended Inputs
Easy Drive™ Technology Enables Rail-to-Rail
Inputs with Zero Differential Input Current
Directly Digitizes High Impedance Sensors with
Full Accuracy
600nV RMS Noise
Integrated High Accuracy Temperature Sensor
GND to V
CC
Input/Reference Common Mode Range
Programmable 50Hz, 60Hz or Simultaneous
50Hz/60Hz Rejection Mode
2ppm INL, No Missing Codes
1ppm Offset and 15ppm Full-Scale Error
2x Speed Mode (15Hz Using Internal Oscillator)
No Latency: Digital Filter Settles in a Single Cycle,
Even After a New Channel Is Selected
Single Supply 2.7V to 5.5V Operation (0.8mW)
Internal Oscillator
Tiny QFN 5mm
×
7mm Package
applications
n
n
n
n
Direct Sensor Digitizer
Direct Temperature Measurement
Instrumentation
Industrial Process Control
typical application
Data Acquisition System with Temperature Compensation
2.7V TO 5.5V
CH0
CH1
•
•
•
CH7 16-CHANNEL
MUX
CH8
•
•
•
CH15
COM
TEMPERATURE
SENSOR
MUXOUT/
ADCIN
IN
+
REF
+
24-BIT
∆Σ
ADC
WITH EASY DRIVE
IN
–
REF
–
V
CC
SDI
SCK
SDO
CS
f
O
OSC
2498 TA01a
Internal Sensor
Absolute Temperature Error
5
4
ABSOLUTE ERROR (°C)
0.1µF
10µF
3
2
1
0
–1
–2
–3
–4
–5
–55
–30
–5
20
45
70
TEMPERATURE (°C)
95
120
4-WIRE
SPI INTERFACE
MUXOUT/
ADCIN
2498 TA01b
2498fg
For more information
www.linear.com/LTC2498
1
LTC2498
absolute MaxiMuM ratings
(Notes 1, 2)
pin conFiguration
TOP VIEW
GND
GND
31 GND
30 REF
–
29 REF
+
28 V
CC
27 MUXOUTN
39
26 ADCINN
25 ADCINP
24 MUXOUTP
23 CH15
22 CH14
21 CH13
20 CH12
13 14 15 16 17 18 19
CH5
CH6
CH7
CH8
CH9
CH10
CH11
SDO
SCK
SDI
CS
f
O
38 37 36 35 34 33 32
GND 1
NC 2
GND 3
GND 4
GND 5
GND 6
COM 7
CH0 8
CH1 9
CH2 10
CH3 11
CH4 12
Supply Voltage (V
CC
) ................................... –0.3V to 6V
Analog Input Voltage
(CH0 to CH15, COM) .................–0.3V to (V
CC
+ 0.3V)
Reference Input Voltage
ADCINN, ADCINP, MUXOUTP,
MUXOUTN ................................–0.3V to (V
CC
+ 0.3V)
Digital Input Voltage......................–0.3V to (V
CC
+ 0.3V)
Digital Output Voltage ...................–0.3V to (V
CC
+ 0.3V)
Operating Temperature Range
LTC2498C ................................................ 0°C to 70°C
LTC2498I .............................................–40°C to 85°C
LTC2498H .......................................... –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
UHF PACKAGE
38-LEAD (5mm
×
7mm) PLASTIC QFN
T
JMAX
= 125°C,
θ
JA
= 34°C/W
EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB
orDer inForMation
LEAD FREE FINISH
LTC2498CUHF#PBF
LTC2498IUHF#PBF
LTC2498HUHF#PBF
TAPE AND REEL
LTC2498CUHF#TRPBF
LTC2498IUHF#TRPBF
LTC2498HUHF#TRPBF
PART MARKING*
2498
2498
2498
PACKAGE DESCRIPTION
38-Lead (5mm × 7mm) Plastic QFN
38-Lead (5mm × 7mm) Plastic QFN
38-Lead (5mm × 7mm) Plastic QFN
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
The
l
denotes the specifications which
apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C. (Notes 3, 4)
PARAMETER
Resolution (No Missing Codes)
Integral Nonlinearity
CONDITIONS
0.1V ≤ V
REF
≤ V
CC
, –FS ≤ V
IN
≤ +FS (Note 5)
5V ≤ V
CC
≤ 5.5V, V
REF
= 5V, V
IN(CM)
= 2.5V (Note 6)
H Grade
2.7V ≤ V
CC
≤ 5.5V, V
REF
= 2.5V, V
IN(CM)
= 1.25V (Note 6)
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Note 14)
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.75V
REF
, IN
–
= 0.25V
REF
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.75V
REF
, IN
–
= 0.25V
REF
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.25V
REF
, IN
–
= 0.75V
REF
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.25V
REF
, IN
–
= 0.75V
REF
l
l
l
electrical characteristics (norMal speeD)
MIN
24
TYP
2
1
0.5
10
MAX
10
12
2.5
25
UNITS
Bits
ppm of V
REF
ppm of V
REF
ppm of V
REF
µV
nV/°C
ppm of V
REF
ppm of V
REF
/°C
ppm of V
REF
ppm of V
REF
/°C
2498fg
Offset Error
Offset Error Drift
Positive Full-Scale Error
Positive Full-Scale Error Drift
Negative Full-Scale Error
Negative Full-Scale Error Drift
l
0.1
l
25
0.1
2
For more information
www.linear.com/LTC2498
LTC2498
electrical characteristics (norMal speeD)
PARAMETER
Total Unadjusted Error
CONDITIONS
5V ≤ V
CC
≤ 5.5V, V
REF
= 2.5V, V
IN(CM)
= 1.25V
5V ≤ V
CC
≤ 5.5V, V
REF
= 5V, V
IN(CM)
= 2.5V
2.7V ≤ V
CC
≤ 5.5V, V
REF
= 2.5V, V
IN(CM)
= 1.25V
5.5V < V
CC
< 2.7V, 2.5V ≤ V
REF
≤ V
CC
,
GND ≤ IN
+
= IN
–
≤ V
CC
(Note 13)
T
A
= 27°C (Note 5)
27.8
The
l
denotes the specifications which
apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C. (Notes 3, 4)
MIN
TYP
15
15
15
0.6
28.0
93.5
28.2
MAX
UNITS
ppm of V
REF
ppm of V
REF
ppm of V
REF
µV
RMS
mV
µV/°C
Output Noise
Internal PTAT Signal
Internal PTAT Temperature Coefficient
electrical characteristics (2x speeD)
PARAMETER
Resolution (No Missing Codes)
Integral Nonlinearity
Offset Error
Offset Error Drift
Positive Full-Scale Error
Positive Full-Scale Error Drift
Negative Full-Scale Error
Negative Full-Scale Error Drift
Output Noise
CONDITIONS
0.1V ≤ V
REF
≤ V
CC
, –FS ≤ V
IN
≤ +FS (Note 5)
The
l
denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25°C. (Notes 3, 4)
MIN
24
l
l
TYP
2
1
0.5
100
MAX
10
2
25
UNITS
Bits
ppm of V
REF
ppm of V
REF
mV
nV/°C
ppm of V
REF
ppm of V
REF
/°C
ppm of V
REF
ppm of V
REF
/°C
µV
RMS
5V ≤ V
CC
≤ 5.5V, V
REF
= 5V, V
IN(CM)
= 2.5V (Note 6)
2.7V ≤ V
CC
≤5.5V, V
REF
= 2.5V, V
IN(CM)
= 1.2V (Note 6)
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Note 14)
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.75V
REF
, IN
–
= 0.25V
REF
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.75V
REF
, IN
–
= 0.25V
REF
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.25V
REF
, IN
–
= 0.75V
REF
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.25V
REF
, IN
–
= 0.75V
REF
5V ≤ V
CC
≤ 2.5V, V
REF
= 5V, GND ≤ IN
+
= IN
–
≤ V
CC
l
0.1
l
25
0.1
0.85
converter characteristics
PARAMETER
Input Common Mode Rejection DC
Input Common Mode Rejection 60Hz ±2%
Input Common Mode Rejection 50Hz ±2%
Input Normal Mode Rejection 50Hz ±2%
Input Normal Mode Rejection 60Hz ±2%
Input Normal Mode Rejection 50Hz/60Hz ±2%
Reference Common Mode Rejection DC
Power Supply Rejection DC
Power Supply Rejection, 50Hz ±2%
Power Supply Rejection, 60Hz ±2%
CONDITIONS
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
MIN
l
l
l
l
l
l
l
TYP
MAX
UNITS
dB
dB
dB
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Note 5)
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Note 5)
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Note 5)
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Notes 5, 7)
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Notes 5, 8)
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Notes 5, 9)
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Note 5)
V
REF
= 2.5V, IN
+
= IN
–
= GND
V
REF
= 2.5V, IN
+
= IN
–
= GND (Notes 7, 9)
V
REF
= 2.5V, IN
+
= IN
–
= GND (Notes 8, 9)
140
140
140
110
110
87
120
140
120
120
120
120
120
dB
dB
dB
dB
dB
dB
dB
analog input anD reFerence
SYMBOL
IN
+
IN
–
PARAMETER
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
CONDITIONS
MIN
GND – 0.3V
GND – 0.3V
TYP
MAX
V
CC
+ 0.3V
V
CC
+ 0.3V
UNITS
V
V
Absolute/Common Mode IN
+
Voltage
(IN
+
Corresponds to the Selected Positive Input Channel)
Absolute/Common Mode IN
–
Voltage
(IN
–
Corresponds to the Selected Negative Input Channel
or COM)
2498fg
For more information
www.linear.com/LTC2498
3
LTC2498
analog input anD reFerence
SYMBOL
V
IN
FS
LSB
REF
+
REF
–
V
REF
CS(IN
+
)
CS(IN
–
)
CS(V
REF
)
I
DC_LEAK(IN+)
I
DC_LEAK(IN–)
PARAMETER
Input Voltage Range (IN
+
– IN
–
)
Full Scale of the Input (IN
+
– IN
–
)
Least Significant Bit of the Output Code
Absolute/Common Mode REF
+
Voltage
Absolute/Common Mode REF
–
Voltage
Reference Voltage Range (REF
+
– REF
–
)
IN
+
Sampling Capacitance
IN
–
Sampling Capacitance
V
REF
Sampling Capacitance
IN
+
DC Leakage Current
IN
–
DC Leakage Current
Sleep Mode, IN
+
= GND
Sleep Mode, IN
–
= GND
Sleep Mode, REF
+
= V
CC
Sleep Mode, REF
–
= GND
V
IN
= 2V
P-P
DC to 1.8MHz
l
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
CONDITIONS
Differential/Single-Ended
Differential/Single-Ended
l
l
l
l
l
l
MIN
–FS
0.5V
REF
FS/2
24
0.1
GND
0.1
TYP
MAX
+FS
UNITS
V
V
V
CC
REF
+
–
0.1V
V
CC
11
11
11
V
V
V
pF
pF
pF
–10
–10
–100
–100
1
1
1
1
50
120
10
10
100
100
nA
nA
nA
nA
ns
dB
I
DC_LEAK(REF+)
REF
+
DC Leakage Current
I
DC_LEAK(REF–)
REF
–
DC Leakage Current
t
OPEN
QIRR
MUX Break-Before-Make
MUX Off Isolation
Digital inputs anD Digital outputs
SYMBOL
V
IH
V
IL
V
IH
V
IL
I
IN
I
IN
C
IN
C
IN
V
OH
V
OL
V
OH
V
OL
I
OZ
PARAMETER
High Level Input Voltage (CS, f
O
, SDI)
Low Level Input Voltage (CS, f
O
, SDI)
High Level Input Voltage (SCK)
Low Level Input Voltage (SCK)
Digital Input Current (CS, f
O
, SDI)
Digital Input Current (SCK)
Digital Input Capacitance (CS, f
O
, SDI)
Digital Input Capacitance (SCK)
High Level Output Voltage (SDO)
Low Level Output Voltage (SDO)
High Level Output Voltage (SCK)
Low Level Output Voltage (SCK)
Hi-Z Output Leakage (SDO)
(Notes 10, 17)
CONDITIONS
2.7V ≤ V
CC
≤ 5.5V
The
l
denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
MIN
l
l
l
l
l
l
TYP
MAX
0.5
UNITS
V
V
V
V
µA
µA
pF
pF
V
2.7V ≤ V
CC
≤ 5.5V (Note 18)
2.7V ≤ V
CC
≤ 5.5V (Notes 10, 15)
2.7V ≤ V
CC
≤ 5.5V (Notes 10, 15)
0V ≤ V
IN
≤ V
CC
0V ≤ V
IN
≤ V
CC
(Notes 10, 15)
V
CC
– 0.5
V
CC
– 0.5
0.5
–10
–10
10
10
10
10
I
O
= –800µA (Notes 10, 17)
I
O
= 1.6mA (Notes 10, 17)
I
O
= –800µA
I
O
= 1.6mA
l
l
l
l
l
V
CC
– 0.5
0.4
V
CC
– 0.5
0.4
–10
10
V
V
V
µA
power requireMents
SYMBOL
V
CC
I
CC
PARAMETER
Supply Voltage
Supply Current
The
l
denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 3)
CONDITIONS
l
MIN
2.7
l
l
l
l
TYP
160
200
1
MAX
5.5
275
300
2
2.5
UNITS
V
µA
µA
µA
µA
2498fg
Conversion Current (Note 12)
Temperature Measurement (Note 12)
Sleep Mode (Note 12)
H-Grade
4
For more information
www.linear.com/LTC2498
LTC2498
Digital inputs anD Digital outputs
SYMBOL
f
EOSC
t
HEO
t
LEO
t
CONV_1
PARAMETER
External Oscillator Frequency Range
External Oscillator High Period
External Oscillator Low Period
Conversion Time for 1x Speed Mode
50Hz Mode
60Hz Mode
Simultaneous 50/60Hz Mode
External Oscillator
50Hz Mode
60Hz Mode
Simultaneous 50/60Hz Mode
External Oscillator
Internal Oscillator (Note 10)
External Oscillator (Notes 10, 11)
(Note 10)
(Note 10)
(Note 10)
(Note 10)
Internal Oscillator
External Oscillator
(Note 10)
l
l
l
l
l
l
l
The
l
denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
CONDITIONS
(Note 16)
l
l
l
l
l
l
l
l
l
MIN
10
0.125
0.125
157.2
131
144.1
78.7
65.6
72.2
TYP
MAX
1000
50
50
UNITS
kHz
µs
µs
ms
ms
ms
ms
ms
ms
ms
ms
kHz
kHz
160.3
133.6
146.9
41036/f
EOSC
(in kHz)
80.3
66.9
73.6
163.5
136.3
149.9
81.9
68.2
75.1
t
CONV_2
Conversion Time for 2x Speed Mode
20556/f
EOSC
(in kHz)
38.4
f
EOSC
/8
f
ISCK
D
ISCK
f
ESCK
t
LESCK
t
HESCK
t
DOUT_ISCK
t
DOUT_ESCK
t
1
t
2
t
3
t
4
t
KQMAX
t
KQMIN
t
5
t
6
t
7
t
8
Internal SCK Frequency
Internal SCK Duty Cycle
External SCK Frequency Range
External SCK LOW Period
External SCK High Period
Internal SCK 32-Bit Data Output Time
External SCK 32-Bit Data Output Time
CS↓
to SDO Low
CS↑
to SDO Hi-Z
CS↓
to SCK↑
CS↓
to SCK↑
SCK↓ to SDO Valid
SDO Hold After SCK↓
SCK Set-Up Before
CS↓
SCK Hold After
CS↓
SDI Setup Before SCK↑
SDI Hold After SCK↑
45
125
125
0.81
0.83
256/f
EOSC
(in kHz)
32/f
ESCK
(in kHz)
0
0
0
50
55
4000
%
kHz
ns
ns
0.85
ms
ms
ms
ns
ns
ns
ns
ns
ns
ns
200
200
200
200
Internal SCK Mode
External SCK Mode
(Note 5)
l
l
l
l
l
l
15
50
50
100
100
ns
ns
ns
(Note 5)
(Note 5)
l
l
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings may
cause permanent damage to the device. Exposure to any Absolute Maximum
Rating condition for extended periods may affect device reliability and lifetime.
Note 2:
All voltage values are with respect to GND.
Note 3:
V
CC
= 2.7V to 5.5V unless otherwise specified.
V
REFCM
= V
REF
/2, F
S
= 0.5V
REF
V
IN
= IN
+
– IN
–
, V
IN(CM)
= (IN
+
– IN
–
)/2,
where IN
+
and IN
–
are the selected input channels.
Note 4:
Use internal conversion clock or external conversion clock source
with f
EOSC
= 307.2kHz unless other wise specified.
Note 5:
Guaranteed by design, not subject to test.
Note 6:
Integral nonlinearity is defined as the deviation of a code from a
straight line passing through the actual endpoints of the transfer curve. The
deviation is measured from the center of the quantization band.
Note 7:
50Hz mode (internal oscillator) or f
EOSC
= 256kHz ±2% (external oscillator).
Note 8:
60Hz mode (internal oscillator) or f
EOSC
= 307.2kHz ±2% (external
oscillator).
Note 9:
Simultaneous 50Hz/60Hz mode (internal oscillator) or f
EOSC
=
280kHz ±2% (external oscillator).
Note 10:
The SCK can be configured in external SCK mode or internal SCK
mode. In external SCK mode, the SCK pin is used as a digital input and the
driving clock is f
ESCK
. In the internal SCK mode, the SCK pin is used as a
digital output and the output clock signal during the data output is f
ISCK
.
Note 11:
The external oscillator is connected to the f
O
pin. The external
oscillator frequency, f
EOSC
, is expressed in kHz.
Note 12:
The converter uses its internal oscillator.
Note 13:
The output noise includes the contribution of the internal
calibration operations.
Note 14:
Guaranteed by design and test correlation.
Note 15:
The converter is in external SCK mode of operation such that the
SCK pin is used as a digital input. The frequency of the clock signal driving
SCK during the data output is f
ESCK
and is expressed in Hz.
Note 16:
Refer to Applications Information section for performance vs
data rate graphs.
Note 17:
The converter is in internal SCK mode of operation such that the
Input type: Differential, Single Ended Number of inputs: 8,16 Sampling rate (sps): 7.5 A/D Number of digits: 24 24-bit, 8-channel/16-channel ΔΣ ADC with Easy Drive input current cancellation
[i=s]This post was last edited by hejecu on 2018-11-24 17:09[/i] Chapter 13 FLASH Data Storage Experiment[b]13.1 Experimental Purpose[/b] To learn the IAP (In Application Programming) function of STM3...
[i=s]This post was last edited by RobertLiang on 2022-4-26 13:30[/i]Hello Expert,
I have read in some materials that changing the circuit supply voltage may affect some dynamic performance of the op a...
One board uses the 28335 SCIC serial port to expand RS422 through ADM2582, and the other board stm32F407 microcontroller uses the same chip to expand the 422 serial port.
There is no problem for the t...
How to make an echo on atmel/AVR microcontroller Atmega 128? Is there any relevant information?
How to make an echo on atmel/AVR microcontroller Atmega 128? Is there any relevant information?
How to m...
The CD4093 pin diagram is shown above.
Then the schematic package uses 4 subcomponents:The actual schematic design wiring error occurs after compilation:I would like to ask whether only one of the fou...
1. System Solution
This system uses a switch-type boost circuit to convert the input DC power supply to output 12V voltage, which provides the working voltage for the constant current source circuit...
Recently, at the 2024 Elexcon Shenzhen Electronics Show, Liu Wei, Vice President of Infineon Technologies and Head of Greater China Marketing for Consumer, Computing and Communications Business, in...[Details]
LiDAR company Sense Photonics has launched its first modular Flash LiDAR for advanced driver assistance systems (ADAS) and autonomous driving, called Osprey, which is now available for pre-order at a...[Details]
According to foreign media reports, starting around 2010, a large number of new commercial drone companies have flooded into the market, with abundant venture capital and a dazzling vision of drones ...[Details]
On October 27, Leapmotor officially released its first smart driving chip with completely independent intellectual property rights - "Lingxin 01". 据了解，凌芯01芯片由浙江芯昇电子与零跑汽车共同研发，将搭载于零跑第三款量产车型C11上。零跑C1...[Details]
In the early morning of June 14th, Beijing time, at Tesla's annual shareholders meeting, CEO Elon Musk once again "made a bold statement", saying that the company's future market value may be more ...[Details]
Introduction to several cycles Cycle Name describe time Oscillation (Clock) The period of the oscillator source that provides the clock pulse signal T=1/f state The oscillation period is obta...[Details]
1 Introduction
Today, LEDs are widely used in LCD backlights, automobiles, traffic lights, and general
lighting
. According to IEC 61000-3-2 Class C regulations, power factor correctio...[Details]
The ratio of PV module capacity to inverter capacity is usually called capacity ratio. Reasonable capacity ratio design needs to be considered comprehensively in combination with the specific project ...[Details]
On the afternoon of the 18th, good news came from the automated factory of Hunan Asim New Materials Co., Ltd. (hereinafter referred to as Asim) located in Ningxiang High-tech Zone. A scientific and te...[Details]
In C language programs, you cannot use the entire array at once, you can only use a single array element. An array element is equivalent to a variable, and the method of using an array element is th...[Details]
Synopsys supports Samsung SDS’ open source software lifecycle strategy There are many sources of open source software, and users must ensure the credibility of the open source software supply chain...[Details]
1 Introduction In practical applications, controlling the physical parameters of the controlled object (temperature, humidity, displacement, current, voltage, etc.) within a certain range is one of...[Details]
According to Taiwanese media reports, touch screen chip manufacturer Elan Electronics announced today that it will raise product prices across the board starting today to cope with rising costs, with...[Details]
When talking about LABVIEW, we cannot but mention data acquisition and control. There was a debate online about whether LV is a general programming language. The title of an article by the founder o...[Details]
Source: Getty Images/Jae Young Ju
Infineon Technologies has introduced a new touch controller, the automotive-grade PSoC Multi-Touch GEN8XL (IAAT818X), to meet the growing demand for adv...[Details]
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